To edit a course, use the course list and/or course search functions to locate the course. In the course listing then click on "edit course." Note: users may only edit courses which they themselves have entered into the database. Administrators can edit any course so if information is incorrect on a course you have not entered, contact an administrator.
The edit course function (pictured below) is very similar to the add course function. The only difference is that the existing data is already in the course fields. Simply make the corrections and hit the submit button and you are done.